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This article is cited in 5 scientific papers (total in 5 papers)
OPTO-IT
Interferometric testing of steep cylindrical surfaces with on-axis CGHs
A. G. Poleshchuka, R. K. Nasyrova, J.-M. Asfourb a Institute of Automation and Electrometry, Russian Academy of Sciences, Novosibirsk, Russia
b Dioptic GmbH, Weinheim, Germany
Abstract:
We present a new approach for testing cylindrical optical surfaces using a Null-test. We suggest using a Computer Generated Hologram (CGH) in combination with a Transmission Sphere. It is shown that in such an optical layout the period of the diffractive structure is larger than in the case of a conventional scheme using a collimated beam. Therefore, this kind of hologram enables the test of cylinder surfaces with higher numerical apertures.
Keywords:
diffractive optical elements, computer-generated hologram (CGH), laser writing, methods for DOE fabrication, cylinder metrology surface testing.
Received: 31.12.2015 Accepted: 23.04.2016
Citation:
A. G. Poleshchuk, R. K. Nasyrov, J.-M. Asfour, “Interferometric testing of steep cylindrical surfaces with on-axis CGHs”, Computer Optics, 40:5 (2016), 625–528
Linking options:
https://www.mathnet.ru/eng/co285 https://www.mathnet.ru/eng/co/v40/i5/p625
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